Page 3 - 33Emerging Trends in MRI and CT Scan

d. Magnetic Resonance Spectroscopy (MRS): MRS is a non-invasive technique that measures the

chemical composition of tissues by analyzing the spectra of metabolites. Recent advancements in
MRS have improved spectral resolution and sensitivity, allowing for more accurate identification

and quantification of metabolites. MRS is used in various applications, including tumor
characterization, assessment of brain disorders, and monitoring treatment response.

Innovations in CT Scan Technology:

a. Dual-Source CT (DSCT): DSCT utilizes two X-ray sources and detectors positioned at different
angles, enabling simultaneous acquisition of data at different energy levels. This technology

improves temporal resolution, reduces motion artifacts, and enhances image quality. DSCT is
particularly valuable in cardiac imaging, allowing for better visualization of coronary arteries and

assessment of cardiac function.

b. Iterative Reconstruction Techniques: Iterative reconstruction algorithms are computational

techniques that improve image quality while reducing radiation dose in CT scan. These algorithms

utilize statistical models and iterative calculations to reconstruct images with reduced noise and
improved spatial resolution. Iterative reconstruction techniques are being implemented in clinical

practice to optimize radiation dose without compromising diagnostic accuracy.

c. Dual-Energy CT (DECT): DECT utilizes two different X-ray energy levels to obtain additional

information about tissue composition. It enables the differentiation of materials based on their

atomic number and density, enhancing tissue characterization and lesion detection. DECT has
applications in various fields, including oncology, musculoskeletal imaging, and virtual non-

contrast imaging.

d. Cone Beam CT: Cone Beam CT is a specialized form of CT scan that provides high-resolution

volumetric images with a cone-shaped X-ray beam. It is commonly used in dental and

maxillofacial imaging, providing detailed visualization of dental structures, facial bones, and
temporomandibular joints. Cone Beam CT has also found applications in interventional radiology

and image-guided procedures.

Clinical Impact and Future Directions: